GPT-5 Chat

GPT-5 Chat is OpenAI's general-purpose conversational model with a 128k token context window, positioned as the baseline chat variant within the GPT-5 family.

Strengths

Handles a wide range of conversational and text-based tasks with standard reasoning capabilities and instruction-following.

Best for

General chat applications, content generation, and Q&A workloads where a moderate context window and balanced performance are sufficient.

Limitations

Smaller context window than GPT-5 Pro and GPT-5 Codex (both 400k tokens), and no specialized capabilities for reasoning-heavy tasks, code generation, or multimodal work like later GPT-5 variants offer.